FormatSwap is a utility for converting and resizing image textures directly within Blender. The tool allows users to process textures for individual objects or entire scenes, which can reduce overall .blend file sizes and optimize render times. Features include batch processing for multiple resolutions, an auto-replace system, and support for packed textures. It accommodates any image format supported by Blender, preserves PBR workflows, and includes options for post-processing and restoring original files.